Key ring tool



FIG. 1 is a left edge view of a key ring tool, showing my new design;

FIG. 2 is a top plan view of the key ring tool;

FIG. 3 is a right edge view of the key ring tool.

FIG. 4 is an end view of the key ring tool; and,

FIG. 5 is an isometric view of the key ring tool.

The ornamental design for a key ring tool, as shown and described.